In the last line of the passage, the author writes, "they think that a gigantic meteorite hit earth over 65 million years ago." this statement is intended to
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a. introduce a new idea
b. contradict an earlier statement
c. give an example
d. provide an explanation

An enzymatic hydrolysis of fructose-1-p, fructose-1-p(aq) + h2o(l) - fructose (aq) + pi (aq) was allowed to proceed to equilibrium at 25°c. the original concentration of fructose-1-p was 0.2 m, but when the system had reached equilibrium, the concentration of fructose-1-p was only 6.52 x 10^-5 m. calculate the equilibrium constant for this reaction and the free energy of hydrolysis of fructose-1-p.

Your sense of touch depends upon: a. direct contact b. heat chemical c. reactions d. pain

If a young male's body is just beginning the process of producing sperm, when is it likely that he would ejaculate mature, viable sperm"